Lost his FFL some time back. Had a little hole-in-the-wall retail place I visited one time maybe eight or ten years ago. Last I knew was that he was open again using some other guy's FFL. My old dentist, before moving to Texas, said that Gravitt wanted him to get an FFL so he could use it to continue to run his shop. "No way," my dentist said.
I got the impression Gravitt was dysfunctional, based upon his appearance (dirty clothes, unshowered & unshaved), and him admitting he had some important gun work to do but he was instead working on some drag racing car or some shit like that as he had a race that coming weekend. I felt like he was also in a rush to get back to working on his race car instead of helping me in the retail shop. It's been a long time though.
Last I knew he was teaching IL CCW classes with some guy named Quigley or Quinland at some gun club in the area. Not sure if he still cuts corners on his classes like he used to, but a friend of a friend said he took one of Gravitt's classes and that Gravitt didn't do anything except bitch about Obama before letting them out hours early. Oh yeah, the live-fire for his NRA Basic Pistol was shooting into a snail drum - that's why I remembered it.
I would avoid the guy like the plague.
ETA: You should drive down. He's still in the same place in Saybrook as far as I know.